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Oil burner tuning, Nozzle sizing help
Long winded multi part question.... Beware!
I recently had oil burner issues, found clogged filter, bad aqua stat, sooted up boiler and a clogged oil line. Other than that it was okay. :)
After all was said and done, the thing runs, but I am 100% sure it's not tuned properly or operating efficiently.
A few questions: the boiler itself has a 1.50 gph 60 degree solid nozzle rating on the sticker. The oil burner has a (new) .85 80 B nozzle in it, and I'm wondering if that's too small. The second part of that question is that I am experiencing 2-3 minute cycle times with maybe 10-15 minutes off, which I think is a problem too. Is it just that the boiler is way too big for the house? (10 degree differential fixed, I think, 180 degree setting- 4019-1013 Honeywell aqua stat)
If so, how much oil am I wasting here, and should I think about buying a properly sized boiler in order to save money?
Second, this thing needs to be tuned regardless... I am willifng to buy the tools to do it with the exception of a combustion analyzer, and I know that I should get it professionally tuned but I can hardly afford it... How much headway can I make tuning it myself with a manometer and an ohm meter on the cad cell? Is there a cheap way to do smoke readings? Any tips for making it as good as I can without spending boatloads of money that I don't have?
Disclaimers: I know I can kill myself, have and will take precautions against CO, and am a very experienced field service engineer on non combustion related equipment, so im not a complete idiot. I am fully aware that I should have a pro tune the thing, but I can't do that right now an would like the best advice I can get in the meantime! Thanks for the help!